I watched his game last night and here's what I saw...
Kid has a great curveball, best lefty curve this side of Barry Zito. He throws it on any count, can control it for a strike, and can get it off the plate as a strikeout pitch.
His fastball is low 90's when it needs to be. Good control of it. Sometimes it moves like a slider almost, which I don't think he throws.
I think he threw a changeup last night, or some sort of offspeed junk pitch that looked like a fastball but was a little slower and moved like a bastard.
He made batters look uncomfortable, confused, and downright silly on some instances.
He's confident, in complete control, he's economical, and has a good combination of being a nibbler and good command of the strikezone. Almost like Glavine in a way. Never too much of the plate but never misses too often.
Only time he struggled was in the 7th when he had some trouble with his control because he was clearly tiring. Other than that I was extremely impressed. The kid has a bright, bright future.